Brian Reymanwrote a review of MSR Reactor 1.0L Stove System on February 17, 2014
Familiarity: I've put it through the wringer
I own the reactor stove and started with the original 1.6 liter pot. I recently bought the 1.0 liter pot for a little less weight and pack size. While this one boils water just as well as the 1.6 liter version (which is AMAZING), the stove doesn't fit in the pot as well. It does fit, but requires a bit more careful planning to get it to work. The pour spout is very handy, but the burner adjuster is meant to fit right into the spout when the stove is packed into the top of the pot. A bit tricky and can risk scratching the interior of the pot.
Overall - a worthwhile purchase. But, consider getting the 1.6L setup if you don't absolutely need the 1.0 L. Same great water boiling prowess (which really is significant - this thing boils fast, is impervious to wind, etc. etc. - just like others have reported) with easier packing.